Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 22

Waxing Gibbous 85%

17:54

02:32

22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:48, Set: 18:55, Transit: 12:52. Moon - Rise: 17:54, Set: 02:32. Civil Dark: 19:30 - 06:14. Nautical Dark: 20:10 - 05:33. Astro Dark: 20:53 - 04:51

Total Clouds (% Sky Obscured)

37
45
63
100
98
100
97
100
100
100
91
83
91
69
83
87
72
66
86
55
73
78
79
100

Low Clouds (% Sky Obscured)

37
45
57
68
43
80
80
84
72
64
66
69
86
55
46
68
62
64
78
54
46
47
34
28

Medium Clouds (% Sky Obscured)

17
15
14
10
9
12
16
15
9
24
10
7
7
14
10
13
5
2
11
0
3
4
4
8

High Clouds (% Sky Obscured)

28
45
63
100
93
97
78
100
100
100
25
13
4
5
25
25
25
5
28
6
39
30
62
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
3
4
9
9
9
4
9
9
9
8
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
Light Rain
Very Light Rain
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

16
0
0
28
20
29
45
58
47
18
45
45
80
95
90
95
63
12
17
9
7
2
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.3
0
0
0
0.4
1.5
0.5
1.2
0.6
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
6
5
7
7
7
8
9
9
7
8
10
13
13
15
15
16
13
9
12
11
8
6
5

Chance of Frost

Temperature (°C)

17
16
16
17
17
16
16
16
16
16
17
17
19
19
19
19
19
18
18
18
17
15
14
13

Feels Like (°C)

16
16
15
16
15
15
15
15
15
16
15
15
16
16
17
15
15
16
17
16
15
15
12
12

Dew Point (°C)

12
11
11
11
11
11
11
13
13
14
14
13
13
14
10
10
11
11
11
7
10
13
12
11

Relative Humidity (%)

74
72
68
69
67
72
72
81
82
83
83
76
68
71
55
55
60
61
63
47
62
83
87
86

Pressure (mb)

1026
1026
1025
1025
1024
1024
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1024
1024
1025
1026
1027

Ozone (du)

283
281
281
282
283
284
284
283
285
284
291
299
303
305
304
304
303
302
302
302
304
303
302
301

Wednesday 23

Waxing Gibbous 92%

18:05

03:51

22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 OK
09 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:50, Set: 18:53, Transit: 12:51. Moon - Rise: 18:05, Set: 03:51. Civil Dark: 19:27 - 06:16. Nautical Dark: 20:08 - 05:35. Astro Dark: 20:50 - 04:53

Total Clouds (% Sky Obscured)

100
97
100
100
100
100
96
100
93
72
40
44
76
97
100
97
100
100
100
98
98
96
93
70

Low Clouds (% Sky Obscured)

11
20
28
31
14
8
0
8
6
0
0
0
0
5
11
4
11
7
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

4
4
5
11
5
6
8
13
15
8
8
8
7
9
12
4
0
0
4
0
1
2
6
5

High Clouds (% Sky Obscured)

100
94
99
100
100
100
93
98
79
58
10
13
46
95
100
97
100
100
100
86
87
73
81
62

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
3
4
4
3
3
2
3
2
2
4
6
7
9
10
10
10
10
10
7
6
7
8

Chance of Frost

Temperature (°C)

12
11
10
10
10
9
9
9
8
8
9
11
13
15
17
18
18
19
19
19
18
16
14
14

Feels Like (°C)

11
10
9
9
9
8
8
8
7
7
8
10
12
14
14
14
15
16
16
16
17
14
13
12

Dew Point (°C)

9
9
8
8
8
8
7
7
7
6
6
6
7
6
6
6
6
5
6
6
8
7
7
8

Relative Humidity (%)

84
86
87
88
90
88
88
88
90
88
84
74
65
54
49
45
43
41
41
44
50
56
60
67

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1025
1024
1023
1023
1022
1022
1022
1022

Ozone (du)

300
299
299
299
298
297
296
295
293
294
294
292
291
289
286
284
283
283
282
282
282
282
283
283

Thursday 24

Waxing Gibbous 97%

18:15

05:10

22 Bad
23 Bad
00 OK
01 Good
02 Good
03 OK
04 OK
05 OK
06 OK
07 Good
08 Good
09 Good
10 Good
11 Good
12 OK
13 Bad
14 Bad
15 OK
16 OK
17 OK
18 OK
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:52, Set: 18:51, Transit: 12:51. Moon - Rise: 18:15, Set: 05:10. Civil Dark: 19:25 - 06:17. Nautical Dark: 20:05 - 05:37. Astro Dark: 20:48 - 04:55

Total Clouds (% Sky Obscured)

75
56
30
7
16
21
23
22
22
7
0
0
0
0
21
54
49
48
46
43
47
54
67
62

Low Clouds (% Sky Obscured)

16
15
0
5
15
20
21
22
22
7
0
0
0
0
14
35
37
39
37
35
44
53
59
55

Medium Clouds (% Sky Obscured)

2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
0
0
0
2
3
5

High Clouds (% Sky Obscured)

46
20
30
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
9
8
8
7
7
6
6
5
5
6
6
6
6
6
6
6
7
6
6
6
7
7

Chance of Frost

Temperature (°C)

13
13
12
12
11
10
10
9
9
9
9
12
15
17
19
20
21
22
22
22
20
18
17
17

Feels Like (°C)

11
11
12
10
10
10
9
9
9
9
10
13
15
18
19
21
21
22
22
22
20
18
17
16

Dew Point (°C)

9
9
9
9
8
8
7
7
7
7
7
7
8
9
9
9
9
9
9
10
14
13
13
10

Relative Humidity (%)

76
79
81
83
84
85
85
88
90
90
84
72
63
57
52
48
45
43
43
47
68
70
73
66

Pressure (mb)

1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1019
1019
1018
1018
1018
1018
1017
1017

Ozone (du)

283
284
284
284
283
283
283
283
284
284
285
283
283
283
283
283
284
285
287
289
289
287
286
286

Friday 25

Waxing Gibbous 99%

18:25

06:31

22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 OK
10 OK
11 OK
12 OK
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK
20 OK
21 OK

Sun - Rise: 06:53, Set: 18:48, Transit: 12:51. Moon - Rise: 18:25, Set: 06:31. Civil Dark: 19:22 - 06:19. Nautical Dark: 20:03 - 05:39. Astro Dark: 20:45 - 04:57

Total Clouds (% Sky Obscured)

64
90
86
78
72
78
93
100
84
81
61
41
40
39
42
48
55
65
58
51
40
36
37
40

Low Clouds (% Sky Obscured)

52
52
53
60
60
60
55
48
36
34
32
28
26
23
24
29
38
43
27
12
0
1
2
4

Medium Clouds (% Sky Obscured)

12
14
13
18
23
20
24
27
30
27
61
41
40
5
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
40
40
35
31
48
84
100
57
81
61
41
40
39
42
43
42
45
50
50
40
36
37
40

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
3
1
14
15
7
13
16
19
15
11
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
6
5
6
6
7
11
9
8
7
8
9
8
7
7
6
5
4
5
6
7
7
6
6

Chance of Frost

Temperature (°C)

16
16
15
15
14
14
13
13
13
12
13
14
14
16
17
18
18
19
19
17
16
14
13
13

Feels Like (°C)

15
15
13
13
13
14
11
11
10
11
11
11
12
13
14
15
15
15
15
14
13
11
11
11

Dew Point (°C)

9
9
9
9
9
10
11
10
10
10
11
10
9
9
8
8
6
6
7
7
7
8
9
9

Relative Humidity (%)

65
65
66
67
69
75
84
84
83
86
86
78
71
64
57
51
44
43
45
49
57
67
76
77

Pressure (mb)

1017
1017
1016
1016
1016
1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

284
284
283
283
283
283
282
281
281
283
284
287
290
294
297
298
299
299
300
301
301
301
300
300

Saturday 26

Full Moon 100%

18:37

07:53

22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 OK
05 OK
06 Bad
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:55, Set: 18:46, Transit: 12:50. Moon - Rise: 18:37, Set: 07:53. Civil Dark: 19:20 - 06:21. Nautical Dark: 20:00 - 05:40. Astro Dark: 20:42 - 04:59

Total Clouds (% Sky Obscured)

65
81
99
79
63
40
44
45
49
36
35
25
34
38
47
52
62
66
67
68
61
63
63
58

Low Clouds (% Sky Obscured)

3
1
0
0
0
0
6
11
14
9
4
0
6
10
17
17
19
18
12
11
10
15
30
41

Medium Clouds (% Sky Obscured)

0
0
0
0
0
22
44
45
49
36
35
25
34
38
47
52
62
66
52
34
12
10
5
4

High Clouds (% Sky Obscured)

65
81
97
79
63
40
40
25
20
15
1
0
0
0
0
0
0
0
0
1
2
9
5
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
2
3
1
11
13
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
5
4
4
3
3
3
3
3
3
4
5
6
7
8
9
9
9
8
8
7
7
6
6

Chance of Frost

Temperature (°C)

12
12
12
11
11
10
10
10
9
9
11
13
15
16
17
19
19
20
21
20
19
18
17
17

Feels Like (°C)

11
11
11
11
10
9
9
9
8
9
11
12
13
14
16
17
17
18
18
19
20
20
16
16

Dew Point (°C)

8
8
8
8
8
8
8
8
8
7
8
9
9
9
9
10
10
10
10
11
13
15
13
12

Relative Humidity (%)

77
79
80
83
85
87
87
87
88
87
83
75
68
62
59
56
53
50
48
57
69
82
78
75

Pressure (mb)

1019
1019
1019
1018
1018
1018
1017
1017
1017
1016
1016
1016
1016
1015
1015
1014
1014
1013
1012
1013
1013
1013
1013
1013

Ozone (du)

300
301
300
299
300
300
300
300
300
300
300
299
299
299
302
303
302
302
302
302
302
302
303
303

Sunday 27

Waning Gibbous 98%

18:51

09:19

22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 OK
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 OK
19 Bad
20 Bad
21 Bad

Sun - Rise: 06:57, Set: 18:43, Transit: 12:50. Moon - Rise: 18:51, Set: 09:19. Civil Dark: 19:18 - 06:22. Nautical Dark: 19:58 - 05:42. Astro Dark: 20:40 - 05:01

Total Clouds (% Sky Obscured)

66
72
75
83
92
100
100
100
100
100
99
99
84
60
34
52
69
71
45
35
30
55
77
100

Low Clouds (% Sky Obscured)

40
37
31
30
27
27
28
27
15
7
4
3
2
3
8
15
24
31
27
10
3
7
11
13

Medium Clouds (% Sky Obscured)

6
7
11
9
7
6
30
54
78
74
70
64
67
60
34
41
23
2
2
2
2
3
5
6

High Clouds (% Sky Obscured)

13
36
41
61
80
100
100
100
100
99
97
96
68
40
13
9
12
6
12
21
27
51
77
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
5
5
6
5
5
5
5
5
5
5
5
5
5
6
6
6
6
6
5
7
9
8
8

Chance of Frost

Temperature (°C)

16
15
15
14
14
13
13
13
12
12
13
14
15
17
18
19
20
20
21
19
17
15
15
15

Feels Like (°C)

15
16
15
15
12
12
11
11
10
10
10
11
10
11
12
12
18
18
18
19
19
19
14
14

Dew Point (°C)

11
10
8
6
6
6
6
6
6
6
7
8
8
9
9
9
9
8
8
10
11
12
11
11

Relative Humidity (%)

72
68
62
58
60
61
63
64
66
68
66
63
60
58
53
50
48
46
45
54
67
82
77
74

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1015
1015
1015

Ozone (du)

304
305
306
307
307
307
308
308
308
308
310
311
312
315
318
321
322
322
322
319
317
315
313
311

Monday 28

Waning Gibbous 93%

19:09

10:49

22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:58, Set: 18:41, Transit: 12:50. Moon - Rise: 19:09, Set: 10:49. Civil Dark: 19:15 - 06:24. Nautical Dark: 19:55 - 05:44. Astro Dark: 20:37 - 05:02

Total Clouds (% Sky Obscured)

100
100
100
97
94
91
93
95
97
98
99
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

24
37
49
63
76
85
84
84
83
85
87
86
81
76
70
55
39
24
18
14
24

Medium Clouds (% Sky Obscured)

36
65
95
95
94
91
93
95
97
79
59
38
29
17
4
31
58
86
74
62
47

High Clouds (% Sky Obscured)

100
100
100
94
83
75
79
84
88
91
96
100
100
100
100
100
100
100
100
100
99

ISS Passover

Visibility (miles)

9
8
7
6
4
3
1
2
2
2
5
7
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
40
53
86
95
95
95
95
95
80
63
50
32
30
23
20
15
12
17
20
20

Precipitation Amount (mm)

0
0
0.3
0.6
0.9
1.4
1.3
1
0.8
0.4
0.3
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
7
6
5
6
8
9
10
11
11
10
11
13
13
14
15
15
16
16
17
17

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
15
16
16
16
17
18
18
20
21
23
23
24
24
24
23

Feels Like (°C)

14
14
15
15
13
14
14
15
15
15
15
16
16
18
19
20
22
21
20
20
20

Dew Point (°C)

10
11
12
13
14
14
15
15
16
16
16
17
17
18
20
21
20
20
19
18
18

Relative Humidity (%)

69
75
80
87
90
95
98
98
98
96
95
93
93
91
89
87
81
77
71
72
73

Pressure (mb)

1014
1014
1014
1014
1013
1012
1011
1011
1010
1009
1009
1009
1008
1008
1007
1007
1007
1006
1005
1005
1005

Ozone (du)

310
310
310
310
309
307
305
306
306
306
305
305
304
303
302
302
303
304
305
304
302

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 22/09/26 22:34:40. Forecast: 22/09/26 to 28/09/26. Timezone: UTC+1.00